The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
Sep. 27, 2011
Tommi Koivisto, Espoo, FI;
Mihai Enescu, Espoo, FI;
Timo Roman, Espoo, FI;
Karol Schober, Helsinki, FI;
Tommi Koivisto, Espoo, FI;
Mihai Enescu, Espoo, FI;
Timo Roman, Espoo, FI;
Karol Schober, Helsinki, FI;
Renesas Mobile Corporation, Tokyo, JP;
Abstract
A method, apparatus and computer program product are provided for reporting low rank feedback information for each transmission point up to a maximum rank per transmission point. In this regard, a method includes determining a transmission rank and a precoding matrix for each of at least two transmission points of a plurality of transmission points. A method also includes determining a joint transmission rank based on at least two of the plurality of transmission points. A method also includes selecting a joint transmission precoding matrix based on the determined precoding matrix for each of the at least two transmission points and the determined joint transmission rank. The method further includes causing channel state information 'CSI' to be transmitted to an access point, wherein the CSI describes the selected joint transmission precoding matrix.